Summer:

A big, cold, northern air mass collides with a warm, southerly one. The former slips into the other, forcing it aloft; this causes making up a composite front over, roughly, Shimane and the neighboring prefectures. Because either of the two masses is as powerful as the other, the act remains stationary for a long duration, the tsuyu mentioned above. The tsuyu usually ends in Shimane in the middle of July. The entire summer begins. The summer is sweltering and humid, but the green leaves are beautiful.

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